WO2023092488A1 - 远近光一体车灯光学元件、车灯模组和车辆 - Google Patents

远近光一体车灯光学元件、车灯模组和车辆 Download PDF

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Publication number
WO2023092488A1
WO2023092488A1 PCT/CN2021/133663 CN2021133663W WO2023092488A1 WO 2023092488 A1 WO2023092488 A1 WO 2023092488A1 CN 2021133663 W CN2021133663 W CN 2021133663W WO 2023092488 A1 WO2023092488 A1 WO 2023092488A1
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WIPO (PCT)
Prior art keywords
light
low
optical element
integrated
transmitting portion
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PCT/CN2021/133663
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English (en)
French (fr)
Inventor
祝贺
桑文慧
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华域视觉科技(上海)有限公司
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Application filed by 华域视觉科技(上海)有限公司 filed Critical 华域视觉科技(上海)有限公司
Priority to CN202190001049.2U priority Critical patent/CN221375452U/zh
Priority to PCT/CN2021/133663 priority patent/WO2023092488A1/zh
Publication of WO2023092488A1 publication Critical patent/WO2023092488A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses

Definitions

  • the present disclosure relates to an optical element for an integrated headlight, and in particular, the disclosure relates to an optical element for an integrated headlight and a light module and a vehicle including the optical element for an integrated headlight.
  • the optical element of the car light is an optical element used to collect, conduct, and converge the light emitted by the light source to form the required light distribution.
  • the lamps of automobiles on the market tend to be more and more miniaturized and have a narrow and long shape, that is, the upper and lower dimensions or the left and right dimensions of the lamp are required to be small in one direction, while the other direction is relatively large.
  • an optical module assembly including a high beam module and a low beam module assembled together is provided.
  • patent application CN209068228U discloses an optical module assembly, which includes a bracket, a high beam module and a low beam module.
  • Patent application CN209399286U discloses a far and near beam integrated vehicle lamp module with a low beam concentrator and a high beam concentrator.
  • the inventors of the present disclosure found that, in the existing technical solutions for small car lights, the gaps between the components of the optical module assembly are reduced to make the volume of the optical module assembly smaller, but there are still complex optical module structures, The problem of more parts, larger size and higher cost.
  • An exemplary embodiment of the present disclosure provides an optical component for a vehicle light integrated with high and low beams for a vehicle light module.
  • the vehicle light module may include a low beam light source and a high beam light source.
  • the high and low beam integrated car light optical element may include: a low beam light incident part, and the low beam light incident part may be arranged in a one-to-one correspondence with the The low-beam light source is aligned and configured to receive light emitted by the low-beam light source, the low-beam light incident portion may include a near-end portion adjacent to the low-beam light source and a far-end portion opposite to the near-end portion; the high-beam light-entrance portion, The high-beam light incident portion may be arranged to be aligned with the high-beam light source in a one-to-one correspondence and configured to receive light emitted by the high-beam light source, the high-beam light
  • the low beam light entrance part, the high beam light entrance part, the first light transmission part, the second light transmission part, the third light transmission part and the light exit part of the high and low beam integrated vehicle light optical element can be made of transparent materials Made and molded into one piece, the first light-transmitting part and the second light-transmitting part are made of different transparent materials, the low-beam light-incoming part and the first light-transmitting part can be arranged in the vertical direction on the high-beam light-incoming Above the portion and the second light-transmitting portion, in a section taken along a vertical plane defined by the vertical direction and the horizontal direction, the first light-transmitting portion and/or the second light-transmitting portion are formed in a bent shape, The proximal end portion of the first light-transmitting portion is arranged to be spaced apart from the proximal end portion of the second light-transmitting portion in the vertical direction.
  • the second light passing portion includes a first bent portion and a second bent portion, and in a section taken along a vertical plane, the first bent portion is set at an angle relative to the horizontal direction, and the second bent portion is arranged at an angle relative to the horizontal direction.
  • the two bent portions are set at an angle relative to the first bent portion, so that the proximal portion of the second light-transmitting portion is located below the distal portion of the second light-transmitting portion in the vertical direction.
  • the first light-transmitting portion includes a third bent portion, and in a section taken along a vertical plane, the third bent portion is set at an angle relative to the horizontal direction, so that the first light-transmitting portion The proximal portion is located above the distal portion of the first light-transmitting portion in the vertical direction.
  • the optical element of integrated headlights with high and low beams can be provided with a cover formed of an opaque material, and the cover can be configured to be integrally formed with the optical element of integrated headlights with high and low beams and surround the first light-transmitting portion , the outer peripheral portion of at least one of the second light-transmitting portion and the third light-transmitting portion.
  • the low beam light incident part and/or the high beam light incident part may include a light concentrating part, and the light concentrating part may be configured to collimate and condense the light received by the light concentrating part.
  • the refractive index of the first light passing portion may be set to be greater than the refractive index of the second light passing portion.
  • both the first light-transmitting portion and the third light-transmitting portion may be made of the same transparent material.
  • the first light-transmitting portion, the third light-transmitting portion and the light-emitting portion may be made of the same transparent material.
  • all three of the first light-transmitting portion, the third light-transmitting portion and the light-exiting portion may be made of polycarbonate material or plexiglass.
  • the first light-transmitting portion may be provided with a cut-off line structure, and the cut-off line structure may be disposed at a front edge of the first interface between the first light-transmitting portion and the second light-transmitting portion.
  • the second light passing portion and the third light passing portion may be made of different transparent materials, and a second interface may be formed between the second light passing portion and the third light passing portion.
  • the second interface can be configured to have a planar shape or a curved shape.
  • the third light-transmitting part may be made of polycarbonate material or plexiglass, and the second light-transmitting part may be made of silica gel material.
  • the present disclosure provides a vehicle light module, which may include the optical element for a vehicle headlight integrated with high and low beams according to the present disclosure.
  • the present disclosure provides a vehicle, which may include the vehicle light module according to the disclosure.
  • the far and near light integrated headlight optical element formed in one piece has the advantages of simple optical structure, flexible light distribution, small size and high integration while meeting the lighting requirements of vehicle headlights, and corresponds to
  • the low-beam incident part of the low-beam light source can be set at a relatively large distance from the high-beam incident part corresponding to the high-beam light source, so the lamp body space of the car light can be fully utilized and flexibly designed to improve the space utilization rate of the lamp body , and avoid excessive temperature caused by the proximity of the low-beam light source and the high-beam light source to each other, improve the heat dissipation efficiency, and thus improve the stability of the low-beam light source and the high-beam light source.
  • the car light module of the present disclosure which includes the integrated far and near beam optical element, only the light source and the far and near beam integrated headlight optical element are needed to realize far and near beam lighting, no additional optical elements are required, and the structure is simple and compact. It can realize the miniaturization requirements of the integrated far and near beam lights, and can realize the overlapping area of far and near beams between the low beam light shape and the high beam light shape.
  • the low beam light shape and the high beam light shape are well connected, and the lighting effect It is better, and at the same time, it can meet the requirements of the national standard GB25991-2010 on the low beam and high beam light distribution requirements of the car light module.
  • Fig. 1 is a perspective view of an optical element of a headlight integrated with high and low beams according to an exemplary embodiment of the present disclosure
  • Fig. 2 is a three-dimensional schematic diagram of the optical element of the far and near light integrated headlight shown in Fig. 1;
  • Fig. 3 is a three-dimensional schematic diagram of the optical element of the far and near light integrated headlight shown in Fig. 1 from another viewing angle;
  • Fig. 4 is a three-dimensional schematic diagram of the optical element of the headlight integrated with far and near light shown in Fig. 1 from another viewing angle;
  • Fig. 5 is a top view of the optical element of the far and near light integrated headlight shown in Fig. 1;
  • Fig. 6 is a cross-sectional view taken along the section line A-A in Fig. 5;
  • Fig. 7 is a side view of the optical element of the headlight integrated with far and near light shown in Fig. 1;
  • Fig. 8 is a sectional view taken along the section line B-B in Fig. 7;
  • Fig. 9 is a schematic diagram of the optical path of the optical element of the headlight integrated with high and low beams according to an exemplary embodiment of the present disclosure.
  • Fig. 10 is a schematic diagram of a light shape formed by a vehicle light module including an optical element integrating high and low beams according to an exemplary embodiment of the present disclosure.
  • the present disclosure relates to vehicle lighting devices, particularly headlights of vehicles.
  • vehicle lighting devices particularly headlights of vehicles.
  • small lens lens modules for vehicle headlights For example, the upper and lower dimensions or left and right dimensions of the light emitting surface of the lens are required to be less than or equal to 30mm, especially less than or equal to 20mm.
  • narrow and long lenses such as narrow and long car lights
  • the upper and lower dimensions of the lens are 15mm
  • the left and right dimensions are 30mm.
  • the existing optical module assembly for high-beam integrated vehicle lights may include a high-beam module and a low-beam module assembled together, but such an optical module assembly has complex optical structures, many parts, and a large overall size. and higher costs.
  • the present disclosure proposes an optical element for a small integrated low-beam and high-beam lamp.
  • FIGS. 1 to 9 An exemplary embodiment of an optical element for a headlight integrated with high and low beams according to the present disclosure will be described below with reference to FIGS. 1 to 9 .
  • the high and low beam integrated headlight optical element used in the headlight module is provided, and the headlight module includes the low beam light source, the high beam light source and the high and low light integrated headlight optics Component 1, the light emitted from the low beam light source and the high beam light source exits through the high and low beam integrated car light optical component 1 and forms an ideal lighting light shape.
  • a "light source” may particularly denote a source of light (eg a device or device that emits light).
  • the light source may be a light emitting diode (LED) that emits light when activated.
  • a light source may be essentially any light source or light emitter including, but not limited to, light emitting diodes (LEDs), lasers, fluorescent lights, incandescent lights, and the like.
  • FIG. 1 is a perspective view of an optical element for a headlight integrated with high and low beams according to an exemplary embodiment of the present disclosure.
  • FIGS. 2 to 4 are three-dimensional schematic diagrams of the optical component of the headlight integrated with high and low beams shown in FIG. 1 as seen from different viewing angles.
  • the optical element 1 for integrated high and low beam headlights may include a low beam incident portion 11 , a high beam incident portion 21 , a first light transmission portion 12 , and a second light transmission portion 22 , the third light passing portion 23 and the light emitting portion 24 .
  • the low beam light incident portion 11 may be arranged to be aligned with the low beam light source in a one-to-one correspondence and may be configured to receive light emitted by the low beam light source, the low beam light incident portion 11 may include a proximal end adjacent to the low beam light source part and the distal part opposite the proximal part.
  • the high-beam light incident portion 21 may be arranged to be aligned with the high-beam light source in a one-to-one correspondence and configured to receive light emitted by the high-beam light source, the high-beam light-incidence portion 21 includes a proximal portion adjacent to the high-beam light source and a The far end opposite to the near end of the high beam incident portion 21 .
  • the first light passing portion 12 may include a proximal portion adjacent to the distal portion of the low beam light incident portion 11 and a distal portion opposite to the proximal portion of the first light passing portion 12, the first The light passing portion 12 may extend from a distal end portion of the low beam incident portion 11 and is configured to transmit light received by the low beam incident portion 11 .
  • the second light-transmitting portion 22 may include a proximal portion adjacent to the far-end portion of the high beam incident portion 21 and a distal portion opposite to the proximal portion of the second light-transmitting portion 22, the second The light passing portion 22 may extend from a distal end portion of the high beam light incident portion 21 and is configured to transmit light received by the high beam light incident portion 21 .
  • the third light-transmitting portion 23 may include a proximal portion adjacent to the distal ends of both the first light-transmitting portion 12 and the second light-transmitting portion 22 and a proximal end adjacent to the third light-transmitting portion 23 the opposite distal end.
  • the light emitting portion 24 may be disposed adjacent to the distal end portion of the third light passing portion 23 .
  • a "light exit part” may specifically refer to an optical element configured to converge and project light to form an illumination light shape that complies with regulatory requirements.
  • the light exit portion 24 may be a convex lens structure, and the light exit surface 241 of the light exit portion 24 may be a spherical surface protruding forward, or an ellipsoid surface or a free curved surface protruding forward.
  • the light emitting portion 24 may be made of polycarbonate material (PC material) or organic glass (PMMA).
  • the light exit portion 24 can be made of a transparent material and formed as one piece, the first light transmission portion 12 and the second light transmission portion 22 are made of different transparent materials, the low beam light entrance portion 11 and the first light transmission portion 12 can In the vertical direction, it is arranged above the high-beam light incident part 21 and the second light-passing part 22.
  • the first light-passing part 12 and the second light-passing part 22 /or the second light-transmitting portion 22 is formed in a bent shape, so that the proximal end portion of the first light-transmitting portion 12 is arranged to be spaced apart from the proximal end portion of the second light-transmitting portion in the vertical direction.
  • the light emitting part 24 can be integrally formed by insert injection molding or double-color injection molding, or can be integrally formed in other suitable ways. Therefore, according to the present disclosure, the integrated far and near beam optical element has the advantages of simple optical structure, small size, and high integration while meeting the lighting requirements of vehicle headlights, thus realizing the miniaturization of the integrated far and near beam lamp. needs, and the cost is low. In addition, since the optical element 1 of the headlight integrated with high and low beams is formed as one piece, the positioning accuracy between the various optical parts is higher, and the formed low beam and high beam light shapes have higher stability.
  • orientation or positional relationship indicated by the used orientation words such as “front, rear, up, down, left, right” is based on the normal installation of the high and low beam integrated headlight optical components of the present disclosure on the vehicle. orientation or positional relationship. Wherein, the direction indicated by the orientation word "front” is the normal driving direction of the vehicle.
  • orientation or positional relationship of the optical components of the far and near beam integrated vehicle headlight of the present disclosure, the vehicle light module and its components is consistent with the installation orientation in actual use.
  • the "horizontal direction” can specifically mean the length direction of the optical element of the headlight integrated headlight (such as the X direction shown in Figure 3), and the “longitudinal direction” can be specifically expressed as being perpendicular to the horizontal direction direction (such as the Y direction shown in Figure 3).
  • “Vertical direction” may specifically mean a direction perpendicular to the longitudinal direction and the horizontal direction (for example, the Z direction shown in FIG. 3 ).
  • “near end” may particularly mean an end close to a light source.
  • the “distal end” may particularly denote the end opposite to the proximal end that is away from the light source.
  • a "vertical plane” is defined by a vertical direction Z and a horizontal direction X, for example a vertical plane is a plane along the vertical direction and passing through the line A-A in FIG. 5 .
  • the first light-transmitting portion 12 and/or the second light-transmitting portion 22 are formed in a bent shape such that the proximal end of the first light-transmitting portion 12
  • the portion can be arranged to be spaced apart from the proximal portion of the second light-transmitting portion 22 in the vertical direction, so that the low-beam light-incident portion 11 can be arranged to be spaced apart from the high-beam light-incident portion 21 by a larger distance, correspondingly making
  • the low beam light source may be arranged at a greater distance from the high beam light source.
  • the optical element of the vehicle light integrated with far and near light can be flexibly arranged according to the space in the lamp body of the vehicle light, which improves the space utilization rate of the vehicle light.
  • the low-beam light source can be set to be separated from the high-beam light source by a large distance, it can avoid excessive temperature caused by the low-beam light source and the high-beam light source being close to each other, improve the heat dissipation efficiency, and improve the low-beam light source and the high-beam light source.
  • the stability of the high beam light source since the low-beam light source can be set to be separated from the high-beam light source by a large distance, it can avoid excessive temperature caused by the low-beam light source and the high-beam light source being close to each other, improve the heat dissipation efficiency, and improve the low-beam light source and the high-beam light source. The stability of the high beam light source.
  • the second light-transmitting portion 22 may include a first bent portion and a second bent portion, and in a section taken along a vertical plane, the first bent portion is set at an angle relative to the horizontal direction , the second bent portion is set at an angle relative to the first bent portion, so that the proximal portion of the second light-transmitting portion 22 is located below the distal portion of the second light-transmitting portion 22 in the vertical direction.
  • the first light-transmitting portion 12 may be disposed approximately in the horizontal direction, and the second light-transmitting portion 22 may be disposed to be bent downward relative to the horizontal direction.
  • the second light passing portion 22 may include a first bent portion and a second bent portion. In a section taken along a vertical plane, the first bent portion is set at an angle a relative to the horizontal direction, and the second bent portion The portion is arranged at an angle b relative to the first bent portion (as shown in FIG. 6 ).
  • the high beam light source corresponding to the high beam light incident part 21 can be arranged in the lower space of the lamp body of the vehicle lamp.
  • angles a and b can be set according to the interior space of the lamp body of the vehicle lamp and the ideal illumination light shape to be formed, and are not limited to the angles shown in FIG. 3 and FIG. 6 .
  • it is possible to properly select and/or adjust the low beam incident part 11, the high beam incident part 21, the first light transmission part 12, the second light transmission part 22, the third light transmission part 23 and the light output The material, shape, relative position and/or the interface between parts and other light distribution parameters of the part 24 can be used to obtain the desired illumination light shape.
  • the second light-transmitting portion 22 is arranged to be bent downward relative to the horizontal direction, which can make full use of the lower space of the lamp body of the vehicle lamp and improve the space utilization rate.
  • the low beam light incident portion 11 can be arranged at a greater distance from the high beam light incident portion 21 , and accordingly the high beam light source can be disposed at a greater distance from the low beam light source. Therefore, it is possible to avoid overheating caused by the proximity of the low-beam light source and the high-beam light source to each other, improve the heat dissipation efficiency, and improve the stability of the low-beam light source and the high-beam light source.
  • the first light-passing portion 12 may include a third bent portion, and in a section taken along a vertical plane, the third bent portion is set at an angle relative to the horizontal direction, so that the first light-passing portion 12 The proximal portion of the light portion 12 is located above the distal portion of the first light-transmitting portion 12 in the vertical direction.
  • the first light-transmitting portion 12 may be configured to be bent upward relative to the horizontal direction, and the second light-transmitting portion 22 may be configured to be bent downward relative to the horizontal direction.
  • the proximal end portion of the first light-transmitting portion 12 is located above the distal end portion of the first light-transmitting portion 12 in the vertical direction
  • the proximal end portion of the second light-transmitting portion 22 It is located below the distal end of the second light-transmitting portion 22 in the vertical direction, so the low-beam light source corresponding to the low-beam light incident portion 11 can be arranged above the high- and low-beam integrated headlight optical element 1 in the vertical direction
  • the high beam light source corresponding to the high beam light incident part 21 can be arranged vertically below the high and low beam integrated vehicle headlight optical element 1, thereby effectively reducing the horizontal direction of the high and low beam integrated vehicle light optical element.
  • the high beam light incident portion 21 can be arranged at a greater distance from the low beam light incident portion 11 , and accordingly the high beam light source can be disposed at a greater distance from the low beam light source. Therefore, it is possible to avoid excessive temperature caused by the proximity of the low beam light source and the high beam light source to each other, improve heat dissipation efficiency, improve the stability of the low beam light source and the high beam light source, and further improve space utilization and adaptability.
  • the optical component 1 for integrated headlights with high and low beams can be provided with a cover made of opaque material.
  • the cover can be configured to form a single piece with the optical element of the headlight integrated with high and low beams and surround at least one of the first light-transmitting portion 12 , the second light-transmitting portion 22 , and the third light-transmitting portion 23 the peripheral part.
  • the cover may be an opaque layer formed of a PC black material.
  • the cover as the opaque layer can prevent the light in the optical element of the far and near light integrated car light from exiting from the side, effectively avoiding the light exiting from the side to form an impact on the vehicle after being projected. stray light from the lamp illumination, thereby increasing the effective light output.
  • the low beam light incident part 11 and/or the high beam light incident part 21 includes a light concentrating part configured to collimate and condense the light received by the light concentrating part.
  • the light collecting part may be formed to have a light cup shape, but is not limited thereto.
  • the low beam light incident part 11 and/or the high beam light incident part 21 are made of silica gel material, and the temperature resistance of the silica gel material is relatively high. Since the light incident part is arranged close to the corresponding light source, therefore, by The low-beam incident portion 11 and/or the high-beam incident portion 21 made of silicone material can improve the temperature resistance of the optical element of the integrated high-beam and low-beam headlight, thus helping to reduce the thermal deformation of the corresponding light-entrance portion.
  • the light incident surface of the low beam light incident part 11 and/or the high beam light incident part 21 may include a plane, a concave curved surface or a convex curved surface.
  • the first light-transmitting portion 12 is made of a transparent material different from that of the second light-transmitting portion 22, and the refractive index of the first light-transmitting portion 12 can be set to be greater than that of the second light-transmitting portion 22. refractive index.
  • the first light-transmitting portion 12 is made of a transparent material different from that of the second light-transmitting portion 22, for example, the first light-transmitting portion 12 can be made of polycarbonate material (PC material) or organic glass (PMMA), and the second light-transmitting portion 22 may be made of silica gel.
  • a first interface 221 may be formed between the first light passing portion 12 and the second light passing portion 22 .
  • both the first light-transmitting portion 12 and the third light-transmitting portion 23 may be made of the same transparent material.
  • the first light-transmitting portion 12 , the third light-transmitting portion 23 and the light-emitting portion 24 may be made of the same transparent material.
  • all three of the first light passing portion 12 , the third light passing portion 23 and the light emitting portion 24 may be made of polycarbonate material or organic glass. Therefore, through the configuration according to this embodiment, the reflection when passing the low beam light is reduced, the light effect is improved, and the processing is also facilitated.
  • the first light-transmitting portion 12 may be provided with a cut-off line structure 223, and the cut-off line structure 223 may be disposed on the first interface 221 between the first light-transmitting portion 12 and the second light-transmitting portion 22. at the front edge.
  • the light irradiated into the first light-transmitting portion 12 is blocked by the cut-off line structure 223 and then enters the third light-transmitting portion 23, and is projected by the light-emitting portion 24 to form a corresponding cut-off line with low beam and dark light (such as the low beam light shown in FIG. 10 ).
  • the low-beam light pattern formed by projecting the light distribution test on the light distribution screen of the vehicle light module including the optical components of the headlight integrated with far and near light has an obvious cut-off line of light and shade, which conforms to the current national standard "Automotive Use LED headlights" (GB25991-2010) the relevant regulations.
  • the second light-transmitting portion 22 and the third light-transmitting portion 23 are made of different transparent materials, and the second light-transmitting portion 22 and the third light-transmitting portion 23 A second interface 224 is formed therebetween.
  • the second interface 224 is configured to redistribute the high beam, ie to adjust the light shape distribution of the high beam light shape.
  • the second interface 224 is configured to have a planar shape or a curved shape.
  • second interface 224 is configured to have a concave or convex curved shape. Therefore, by setting the second interface 224 , the light distribution parameter of the optical element with integrated high and low beams of the present disclosure can be increased, so that flexible light distribution can be realized through the optical element with integrated high and low beams of the present disclosure.
  • the light emitted by the low-beam light source is converged and collimated by the low-beam light incident part 11 and then enters the first light-transmitting part 12, part of the light passes through the third light-transmitting part 23 and exits from the light-emitting part 24, and the other part of the light enters the first light-transmitting part 12.
  • the refractive index of the first light-passing portion 12 is set to be greater than that of the second light-passing portion 22, the incident angles of most of the light rays incident on the first interface 221 will reach the full angle. The critical angle is reflected, so that total reflection occurs, reflected to the light exit portion 24 and emitted.
  • a low beam light shape 110 with a cut-off line is formed. Therefore, according to the high and low beam integrated headlight optical element of the exemplary embodiment of the present disclosure, the loss of the low beam light in the first light passing portion 12 is reduced, the low beam light effect is improved, and the low beam light is prevented from entering the second light beam.
  • the light-transmitting portion 22 is used to avoid stray light in the high beam lighting area.
  • the light emitted by the high-beam light source enters the second light-transmitting portion 22 through the high-beam incident portion 21 , and after being refracted by the first reflective surface 226 of the second light-transmissive portion 22 and/or reflected by the second reflective surface 225 , directly to the second interface 224 or reflected to the second interface 224 through the first interface 221 , refracted from the second interface 224 to the light exit portion 24 , and formed the high beam light shape 120 after being projected by the light exit portion 24 .
  • the refractive index of the second light-transmitting portion 22 can be set to be smaller than the refractive index of the third light-transmitting portion 23, so when the high beam light enters the third light-transmitting portion 23 from the second light-transmitting portion 22, total reflection will not occur , but can produce refraction.
  • the refractive index of the first light-transmitting portion 12 When the refractive index of the first light-transmitting portion 12 is set to be greater than that of the second light-transmitting portion 22, the light emitted by the high-beam light source will not be totally reflected at the first interface 221, and there will be a small amount of light It exits through the first interface 221 to the first light-transmitting part 12, and after passing through the light-emitting part 24, it is projected to the area of the low beam light pattern 110, thereby facilitating the connection of the far and low beam light patterns, and avoiding dark areas at the junction of the far and near beams, which will affect driving the visual effect of the player.
  • the low beam light source and the high beam light source can be controlled separately.
  • the formed low beam light shape 110 can be used for the low beam illumination of the vehicle.
  • the high-beam mode when the low-beam light source and the high-beam light source are turned on simultaneously, the low-beam light shape 110 and the high-beam light shape 120 are combined to form a light shape for vehicle high-beam lighting.
  • the high and low beam integrated headlight optical element can form the high and low beam overlapping area between the low beam light shape and the high beam light shape in the high beam mode.
  • the low beam light shape and the high beam light shape are well connected, and the lighting Better results.
  • the low beam light shape 110 and the high beam light shape 120 are partially overlapped, which can form a non-cohesive pattern for vehicle high beam lighting. Dark area, far and near beam light shape well connected with lighting light shape.
  • the vehicle light module according to the present disclosure further includes a mounting part for the optical element of the high and low beam integrated vehicle light, a circuit board and a heat sink (not shown).
  • the optical component 1 of the headlight integrated with far and near light is fastened to the headlight module through the mounting part.
  • the low beam light source can be arranged on the rear side of the high and low beam integrated car light optical element 1 in the horizontal direction
  • the high beam light source can be arranged in the vertical direction It is on the lower side of the optical component 1 of the headlight integrated with far and near beams.
  • the positions of the low beam light incident part 11 and the high beam light incident part 21 the positions of the high beam light source and the low beam light source and the position of the circuit board for the high beam light source and the circuit board for the low beam light source can be determined respectively. layout.
  • the specific arrangement of the circuit boards used for the high beam light source and the circuit board used for the low beam light source the specific structure and size of the radiator can be designed accordingly.
  • a heat sink can be set for the circuit board for the high beam light source and the circuit board for the low beam light source, or independent heat sink.
  • the high and low beam integrated car light optical element used in the car light module can be flexibly designed based on the lamp body space of the car light and the desired lighting light shape, so that the low beam end of the first light passing part is set at the In the vertical direction, it is spaced apart from the near-beam end of the second light-transmitting portion, so that the low-beam light-incidence portion corresponding to the low-beam light source is set at a relatively large distance from the high-beam light-incidence portion corresponding to the high-beam light source, And it can avoid the overheating caused by the proximity of the low-beam light source and the high-beam light source to each other, improve the heat dissipation efficiency, and thus improve the stability of the low-beam light source and the high-beam light source.
  • the present disclosure provides an optical component for an integrated headlight with high and low beams, and a light module and a vehicle including the optical element for an integrated headlight with high and low beams.
  • the optical components of the high and low beam integrated headlight of the present disclosure are formed in one piece, and can make full use of the lights of the light.
  • Body space is configured so that the near end of the first light transmission part is arranged to be spaced apart from the proximal end of the second light transmission part, and accordingly the low beam light incident part corresponding to the low beam light source is arranged to be set apart from the near end part corresponding to the far light source.
  • the distance between the high-beam light incident parts of the light source is relatively large, so it can avoid the overheating caused by the proximity of the low-beam light source and the high-beam light source to each other, improve the heat dissipation efficiency, and thus improve the stability of the low-beam light source and the high-beam light source sex.
  • the high and low beam integrated headlight optical element, headlight module and vehicle of the present disclosure are reproducible and can be applied in various industrial applications.
  • the optical element of the integrated high and low beam headlights of the present disclosure can be applied to small headlights.

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Abstract

远近光一体车灯光学元件（1）、车灯模组和车辆，车灯模组包括近光光源、远光光源和远近光一体车灯光学元件（1），远近光一体车灯光学元件（1）的近光入光部（11）、远光入光部（21）、第一通光部（12）、第二通光部（22）、第三通光部（23）和出光部（24）由透明材料制成并且成型为一体件，近光入光部（11）和第一通光部（12）在竖向方向上设置在远光入光部（21）和第二通光部（22）的上方，并且第一通光部（12）和/或第二通光部（22）形成为呈弯折形，使得第一通光部（12）的近端部设置成在竖向方向上与第二通光部（22）的近端部间隔开。远近光一体车灯光学元件（1）可以充分利用车灯的灯体空间灵活设计并且避免由于近光光源和远光光源彼此靠近而导致的温度过高，提高了散热效率，提升了近光光源和远光光源的稳定性。

Description

远近光一体车灯光学元件、车灯模组和车辆 技术领域
本公开涉及远近光一体车灯光学元件，具体地，本公开涉及远近光一体车灯光学元件和包括该远近光一体车灯光学元件的车灯模组和车辆。
背景技术
本部分提供了与本公开有关的背景信息，但是这些信息并不必然构成现有技术。
车灯光学元件是一种用于收集、传导、会聚光源发出的光线，以形成所需的光分布的光学元件。目前市场上汽车的车灯越来越趋于小型化且具有窄长造型，即要求车灯的上下尺寸或左右尺寸中的一个方向上的尺寸很小，而另一个方向上的尺寸比较大。
为了满足车灯的小型化的需求，提供了包括组装在一起的远光模块和近光模块的光学模块组件。例如，专利申请CN209068228U公开了一种光学模块组件，该光学模块组件包括托架、远光模块和近光模块。专利申请CN209399286U公开了具有近光聚光器和远光聚光器的远近光一体车灯模组。
发明内容
本部分提供本公开的一般概要，而不是本公开的全部范围或全部特征的全面披露。
本公开的发明人发现，在现有的针对小型车灯提出的技术方案中，光学模块组件的各部件之间的空隙变小使得光学模块组件的体积变小，但是仍然存在光学模块结构复杂、零部件较多、尺寸较大并且成本较高的问题。
因此，存在对远近光一体车灯光学元件进行改进的需要，以克服或缓解上述技术问题的全部或者至少一部分。
本公开的示例性实施方式提供了一种用于车灯模组的远近光一体车灯光学元件，车灯模组可以包括近光光源和远光光源，远近光一体车灯光学元件可以构造成接收从车灯模组的近光光源和远光光源发出的光，远近光一体车灯光学元件可以包括：近光入光部，该近光入光部可以设置成以一一对应的方式与近光光源对准并且构造成接收由近光光源发出的光，近光入光部可以包括邻近于近光光源的近端部和与近端部相反的远端部；远光入光部，该远光入光部可以设置成以一一对应的方式与远光光源对准并且构造成接收由远光光源发出的光，远光入光部可以包括邻近于远光光源的近端部和与远光入光部的近端部相反的远端部；第一通光部，该第一通光部可以包括与近光入光部的远端部邻接的近端部和与第一通光部的近端部相反的远端部，第一通光部可以从近光入光部的远端部延伸，并且可以构造成传递由近光入光部接收的光；第二通光部，该第二通光部可以包括与远光入光部的远端部邻接的近端部和与第二通光部的近端部相反的远端部，第二通光部从远光入光部的远端部延伸，并且构造成传递由远光入光部接收的 光；第三通光部，该第三通光部可以包括与第一通光部和第二通光部两者的远端部邻接的近端部和与第三通光部的近端部相反的远端部；以及出光部，该出光部可以设置成与第三通光部的远端部邻接。
在一些实施方式中，远近光一体车灯光学元件的近光入光部、远光入光部、第一通光部、第二通光部、第三通光部和出光部可以由透明材料制成并且成型为一体件，第一通光部和第二通光部由不同的透明材料制成，近光入光部和第一通光部可以在竖向方向上设置在远光入光部和第二通光部的上方，在沿着由竖向方向和水平方向限定的竖向平面截取的截面中，第一通光部和/或第二通光部形成为呈弯折形，使得第一通光部的近端部设置成在竖向方向上与第二通光部的近端部间隔开。
在一些实施方式中，第二通光部包括第一弯折部分和第二弯折部分，在沿着竖向平面截取的截面中，第一弯折部分设置成相对于水平方向成角度，第二弯折部分设置成相对于第一弯折部分成角度，使得第二通光部的近端部在竖向方向上位于第二通光部的远端部的下方。
在一些实施方式中，第一通光部包括第三弯折部分，在沿着竖向平面截取的截面中，第三弯折部分设置成相对于水平方向成角度，使得第一通光部的近端部在竖向方向上位于第一通光部的远端部的上方。
在一些实施方式中，远近光一体车灯光学元件可以设置有由不透光材料形成的覆盖件，覆盖件可以构造成与远近光一体车灯光学元件成型为一体件并且围绕第一通光部、第二通光部、第三通光部中的至少一者的外周部。
在一些实施方式中，近光入光部和/或远光入光部可以包括聚光部，聚光部可以构造成对由聚光部接收的光进行准直会聚。
在一些实施方式中，第一通光部的折射率可以设置成大于第二通光部的折射率。
在一些实施方式中，第一通光部和第三通光部两者可以由相同的透明材料制成。
在一些实施方式中，第一通光部、第三通光部和出光部三者可以由相同的透明材料制成。
在一些实施方式中，第一通光部、第三通光部和出光部三者可以由聚碳酸酯材料或者有机玻璃制成。
在一些实施方式中，第一通光部可以设置有截止线结构，截止线结构可以设置在第一通光部与第二通光部之间的第一分界面的前边缘处。
在一些实施方式中，第二通光部和第三通光部可以由不同的透明材料制成，在第二通光部与第三通光部之间可以形成有第二分界面。
在一些实施方式中，第二分界面可以构造成具有平面形状或者曲面形状。
在一些实施方式中，第三通光部可以由聚碳酸酯材料或者有机玻璃制成，第二通光部可以由硅胶材料制成。
在一些实施方式中，本公开提供了一种车灯模组，该车灯模组可以包括根据本公开的远近光一体车灯光学元件。
在一些实施方式中，本公开提供了一种车辆，该车辆可以包括根据公开的车灯模组。
根据本公开的成型为一体件的远近光一体车灯光学元件在满足车辆前照灯的光照要求的同时具有光学结构简单、配光灵活、尺寸较小、集成度较高的优点，并且对应于近光光源的近光入光部可以设置成与对应于远光光源的远光入光部相距较大距离，因此可以充分利用车灯的灯体空间灵活设计，提高了灯体的空间利用率，并且避免由于近光光源和远光光源彼此靠近而导致的温度过高，提高了散热效率，从而提升了近光光源和远光光源的稳定性。
根据本公开的包括一体成型的远近光一体车灯光学元件的车灯模组，仅需光源和远近光一体车灯光学元件即可实现远近光照明，不需要另外的光学元件，结构简单紧凑，能够实现远近光一体车灯的小型化的需求，并且能够实现在近光光形与远光光形之间形成远近光重叠区，近光光形与远光光形两者衔接良好，照明效果更好，而且同时能达到国家标准GB25991-2010对车灯模组的近光和远光配光要求。
附图说明
参照下面结合附图对本公开的示例性实施方式的详细说明，可以更加容易地理解本公开的以上和其他目的、特点和优点。在所有附图中，相同的或对应的技术特征或组成部分将采用相同或对应的附图标记来表示。在附图中，各组成部分的尺寸和相对位置并不必然是按比例绘制出的。在附图中：
图1为根据本公开示例性实施方式的远近光一体车灯光学元件的透视图；
图2为图1所示的远近光一体车灯光学元件的立体示意图；
图3为图1所示的远近光一体车灯光学元件的从另一观察角度所见的立体示意图；
图4为图1所示的远近光一体车灯光学元件的从另一观察角度所见的立体示意图；
图5为图1所示的远近光一体车灯光学元件的俯视图；
图6为沿着图5中的截面线A-A截取的截面图；
图7为图1所示的远近光一体车灯光学元件的侧视图；
图8为沿着图7中的截面线B-B截取的截面图；
图9为根据本公开示例性实施方式的远近光一体车灯光学元件的光路示意图；以及
图10为根据本公开示例性实施方式的包括远近光一体车灯光学元件的车灯模组所形成的光形示意图。
具体实施方式
下面将参照附图借助于示例性实施方式对本公开进行详细描述。要注意的是，本公开的示 例性实施方式旨在使得本领域的普通技术人员可以容易地实施本公开，本公开的各实施方式可以以许多不同的形式来实现，而不应当被解释为限于本公开中所阐述的实施方式。相应的，对本公开的以下详细描述仅仅是出于说明目的，而绝不是对本公开的限制。此外，在各个附图中采用相同的附图标记来表示相同的部件。
还需要说明的是，为了清楚起见，在说明书和附图中并未描述和示出实际的特定实施方式的所有特征，并且，为了避免不必要的细节模糊了本公开关注的技术方案，在附图和说明书中仅描述和示出了与本公开的技术方案密切相关的装置结构，而省略了与本公开的技术内容关系不大的且本领域技术人员已知的其他细节。
本公开涉及车灯照明装置，特别是车辆的前照灯。市场上对车辆前照灯的小型透镜车灯模组的需求越来越多，比如要求透镜出光面的上下尺寸或左右尺寸小于等于30mm，尤其是小于等于20mm，一般小型透镜车灯模组以窄长透镜居多(比如窄长造型的车灯)，即上下方向或左右方向中一个方向的尺寸小，而另一个方向的尺寸大。在一些小型透镜车灯模组的示例中，透镜的上下尺寸为15mm、左右尺寸为30mm。如果将现有技术中的透镜出光面尺寸较大的车灯模组直接缩小，则不能满足前照灯出射光的光形、光学性能和光学效率等方面的要求。此外，现有的用于远光一体车灯的光学模块组件可以包括组装在一起的远光模块和近光模块，然而这样的光学模块组件存在光学结构复杂、零部件较多、整体尺寸较大以及成本较高等问题。
针对上述问题，本公开提出一种用于小型近远光一体车灯的光学元件。
以下结合图1至图9对根据本公开的远近光一体车灯光学元件的一示例性实施方式进行说明。
在图1至图9所示的实施方式中，提供了用于车灯模组的远近光一体车灯光学元件，该车灯模组包括近光光源、远光光源和远近光一体车灯光学元件1，从近光光源和远光光源发出的光经由远近光一体车灯光学元件1而出射并且形成理想的照明光形。
在本公开的上下文中，“光源”可以特别地表示光的来源(例如，发光的装置或设备)。例如，光源可以是当被激活时发光的发光二极管(LED)。在本公开的上下文中，光源基本上可以是任何光源或光发射器，其包括但不限于发光二极管(LED)、激光器、荧光灯、白炽灯等。
图1为根据本公开示例性实施方式的远近光一体车灯光学元件的透视图。图2至图4为图1所示的远近光一体车灯光学元件的从不同的观察角度所见的立体示意图。
在一些实施方式中，参照图1至图4，远近光一体车灯光学元件1可以包括近光入光部11、远光入光部21、第一通光部12、第二通光部22、第三通光部23和出光部24。近光入光部11可以设置成以一一对应的方式与近光光源对准并且可以构造成接收由近光光源发出的光，近光入光部11可以包括邻近于近光光源的近端部和与近端部相反的远端部。远光入光部21可以设置成以一一对应的方式与远光光源对准并且构造成接收由远光光源发出的光，远光入光部21 包括邻近于远光光源的近端部和与远光入光部21的近端部相反的远端部。
在一些实施方式中，第一通光部12可以包括与近光入光部11的远端部邻接的近端部和与第一通光部12的近端部相反的远端部，第一通光部12可以从近光入光部11的远端部延伸，并且构造成传递由近光入光部11接收的光。
在一些实施方式中，第二通光部22可以包括与远光入光部21的远端部邻接的近端部和与第二通光部22的近端部相反的远端部，第二通光部22可以从远光入光部21的远端部延伸，并且构造成传递由远光入光部21接收的光。
在一些实施方式中，第三通光部23可以包括与第一通光部12和第二通光部22两者的远端部邻接的近端部和与第三通光部23的近端部相反的远端部。
在一些实施方式中，出光部24可以设置成与第三通光部23的远端部邻接。在本公开的上下文中，“出光部”可以特别地表示构造成用于对光线进行会聚和投射，以形成符合法规要求的照明光形的光学元件。在一些示例中，出光部24可以为凸透镜结构，该出光部24的出光面241可以是向前凸出的球面，也可以是向前凸出的椭球面或者自由曲面等。在一些示例中，出光部24可以由聚碳酸酯材料(PC材料)或者有机玻璃(PMMA)制成。
在一些实施方式中，远近光一体车灯光学元件1的近光入光部11、远光入光部21、第一通光部12、第二通光部22、第三通光部23和出光部24可以由透明材料制成并且成型为一体件，第一通光部12与第二通光部22由不同的透明材料制成，近光入光部11和第一通光部12可以在竖向方向上设置在远光入光部21和第二通光部22的上方，在沿着由竖向方向和水平方向限定的竖向平面截取的截面中，第一通光部12和/或第二通光部22形成为呈弯折形，使得第一通光部12的近端部设置成在竖向方向上与第二通光部的近端部间隔开。
在本公开的上下文中，远近光一体车灯光学元件1的近光入光部11、远光入光部21、第一通光部12、第二通光部22、第三通光部23和出光部24可以是通过嵌件注塑或者双色注塑的方式一体成型的，也可以是以其他适合的方式一体成型的。因此，根据本公开的远近光一体车灯光学元件在满足车辆前照灯的光照要求的同时具有光学结构简单、尺寸较小、集成度较高的优点，因而能够实现远近光一体车灯的小型化的需求，且成本较低。另外，由于远近光一体车灯光学元件1成型为一体件，因而各光学部分之间的定位精度更高，所形成的近光光形和远光光形的稳定性更高。
在本公开的上下文中，使用的方位词如“前、后、上、下、左、右”所指示的方位或位置关系是基于本公开的远近光一体车灯光学元件正常安装在车辆上后的方位或位置关系。其中，方位词“前”所指示的方向为车辆的正常行驶方向。对本公开的远近光一体车灯光学元件和车灯模组及其零部件的方位或位置关系的描述与其实际使用中的安装方位一致。
在本公开的上下文中，“水平方向”可以特别地表示远近光一体车灯光学元件的长度方向 (例如图3中所示的X方向)，“纵向方向”可以特别地表示为与水平方向垂直的方向(例如图3中所示的Y方向)。“竖向方向”可以特别地表示为与纵向方向和水平方向垂直的方向(例如图3中所示的Z方向)。另外，“近端”可以特别地表示靠近光源的一端。相应地，“远端”可以特别地表示与近端相反的远离光源的一端。此外，“竖向平面”由竖向方向Z和水平方向X限定，例如竖向平面为沿着竖向方向并且经过图5中的线A-A的平面。
根据本公开的实施方式，在沿着竖向平面截取的截面中，第一通光部12和/或第二通光部22形成为呈弯折形，使得第一通光部12的近端部可以设置成在竖向方向上与第二通光部22的近端部间隔开，从而使得近光入光部11可以设置成与远光入光部21间隔开较大距离，相应地使得近光光源可以设置成与远光光源间隔开较大距离。因此，根据本公开的远近光一体车灯光学元件能够根据车灯的灯体内的空间灵活设置，提高了车灯的空间利用率。另外，由于近光光源可以设置成与远光光源间隔开较大距离，因此可以避免由于近光光源和远光光源彼此靠近而导致的温度过高，提高了散热效率，提升了近光光源和远光光源的稳定性。
在一些实施方式中，第二通光部22可以包括第一弯折部分和第二弯折部分，在沿着竖向平面截取的截面中，第一弯折部分设置成相对于水平方向成角度，第二弯折部分设置成相对于第一弯折部分成角度，使得第二通光部22的近端部在竖向方向上位于第二通光部22的远端部的下方。
在一些实施方式中，如图3所示，第一通光部12可以大致设置在水平方向上，第二通光部22可以设置成相对于水平方向是向下弯折的。第二通光部22可以包括第一弯折部分和第二弯折部分，在沿着竖向平面截取的截面中，第一弯折部分设置成相对于水平方向成角度a，第二弯折部分设置成相对于第一弯折部分成角度b(如图6所示)。相应地，与远光入光部21对应的远光光源可以设置在车灯的灯体内的下部空间中。应注意的是，角度a和b可以根据车灯的灯体内部空间和需要形成的理想照明光形进行设定，并且不限于图3和图6中所示的角度。在一些实施方式中，可以通过适当选择和/或调节近光入光部11、远光入光部21、第一通光部12、第二通光部22、第三通光部23和出光部24的材料、形状、相对位置以及/或部件之间的分界面等配光参数来获得期望的照明光形。
根据本公开的示例性实施方式的构型，将第二通光部22设置成相对于水平方向向下弯折，可以充分利用车灯的灯体内的下部空间，提高了空间利用率。另外，通过这种构型，近光入光部11可以设置成与远光入光部21间隔开较大距离，相应地使得远光光源可以设置成与近光光源相距较大距离。因此，可以避免由于近光光源和远光光源彼此靠近而导致的温度过高，提高了散热效率，提升了近光光源和远光光源的稳定性。
在另外一些实施方式中，第一通光部12可以包括第三弯折部分，在沿着竖向平面截取的截面中，第三弯折部分设置成相对于水平方向成角度，使得第一通光部12的近端部在竖向方 向上位于第一通光部12的远端部的上方。在一些实施方式中，第一通光部12可以设置成相对于水平方向是向上弯折的，而第二通光部22可以设置成相对于水平方向是向下弯折的。
根据本公开的这种构型，由于第一通光部12的近端部在竖向方向上位于第一通光部12的远端部的上方，第二通光部22的近端部在竖向方向上位于第二通光部22的远端部的下方，因此与近光入光部11对应的近光光源可以在竖向方向上设置在远近光一体车灯光学元件1的上方，并且与远光入光部21对应的远光光源可以在竖向方向上设置在远近光一体车灯光学元件1的下方，从而能够有效地减小该远近光一体车灯光学元件在水平方向上的尺寸，并且可以充分利用车灯的灯体内的上部空间和下部空间，提高了空间利用率。同样地，通过这种构型，远光入光部21可以与近光入光部11设置成间隔开较大距离，相应地使得远光光源可以设置成与近光光源相距较大距离。因此，可以避免由于近光光源和远光光源彼此靠近而导致的温度过高，提高了散热效率，提升了近光光源和远光光源的稳定性，进一步提高了空间利用率和适应性。
在一些实施方式中，远近光一体车灯光学元件1可以设置有由不透光材料形成的覆盖件。
在一些实施方式中，覆盖件可以构造成与远近光一体车灯光学元件成型为一体件并且围绕第一通光部12、第二通光部22、第三通光部23中的至少一者的外周部。
在一些实施方式中，覆盖件可以是由PC黑色材料形成的不透光层。
根据本公开的上述示例性实施方式的构型，作为不透光层的覆盖件可以防止远近光一体车灯光学元件内的光线从侧面出射，有效避免了从侧面出射的光线投射后形成影响车灯照明的杂散光，从而提高有效光的输出。
在一些实施方式中，近光入光部11和/或远光入光部21包括聚光部，该聚光部构造成对由聚光部接收的光进行准直会聚。
在一些实施方式中，该聚光部可以形成为具有聚光杯形状，但不限于此。在一些实施方式中，近光入光部11和/或远光入光部21由硅胶材料制成，硅胶材料的耐温性能较高，由于入光部布置成靠近相应的光源，因此，由硅胶材料制成的近光入光部11和/或远光入光部21能够提高远近光一体车灯光学元件耐温性，因而有助于降低相应的入光部的受热变形。
在一些实施方式中，近光入光部11和/或远光入光部21的入光面可以包括平面、凹形曲面或者凸形曲面。
在一些实施方式中，第一通光部12由与第二通光部22的透明材料不同的透明材料制成，第一通光部12的折射率可以设置成大于第二通光部22的折射率。
如图4至图6中所示，第一通光部12由与第二通光部22的透明材料不同的透明材料制成，例如，第一通光部12可以由聚碳酸酯材料(PC材料)或者有机玻璃(PMMA)制成，第二通光部22可以由硅胶材料制成。在第一通光部12与第二通光部22之间可以形成有第一分界面221。
在一些实施方式中，第一通光部12和第三通光部23两者可以由相同的透明材料制成。
在一些实施方式中，第一通光部12、第三通光部23和出光部24三者可以由相同的透明材料制成。例如，第一通光部12、第三通光部23和出光部24三者可以由聚碳酸酯材料或者有机玻璃制成。因此，通过根据这种实施方式的构型，减少了近光光线通过时的反射，提高了光效，也便于加工。
在一些实施方式中，第一通光部12可以设置有截止线结构223，该截止线结构223可以设置在第一通光部12与第二通光部22之间的第一分界面221的前边缘处。照射至第一通光部12中光经由截止线结构223遮挡后进入第三通光部23，并且经出光部24投射后对应形成具有近光明暗截止线(例如图10所示的近光光形110的上边界)的近光光形110。
根据本公开的包括远近光一体车灯光学元件的车灯模组进行配光试验时投射到配光屏幕上所形成的近光光形图具有明显的明暗截止线，符合现行的国家标准《汽车用LED前照灯》(GB25991-2010)的相关规定。
在一些实施方式中，如图7和图8所示，第二通光部22和第三通光部23由不同的透明材料制成，在第二通光部22与第三通光部23之间形成有第二分界面224。
第二分界面224构造成用于对远光进行再次配光，即用于调节远光光形的光形分布。在一些实施方式中，第二分界面224构造成具有平面形状或者曲面形状。在一些示例中，第二分界面224构造成具有凹形或凸形曲面形状。因此，通过设置第二分界面224，能够增加本公开的远近光一体车灯光学元件的配光参数，从而能够通过本公开的远近光一体车灯光学元件来实现灵活配光。
需要指出的是，由于PC材料和PMMA的折射率均大于硅胶材料的折射率，在PC材料或者PMMA中传输的光线照射到PC材料与硅胶材料的分界面或者PMMA与硅胶材料的分界面时能够产生全反射，在硅胶材料中传输的光线照射到PC材料与硅胶材料的分界面或者PMMA材料与硅胶材料的分界面时则不会产生全反射。
如下参照图9对根据本公开的示例性实施方式的图1所示的远近光一体车灯光学元件的光路原理进行说明。
近光光源发出的光线经近光入光部11会聚准直后进入第一通光部12，一部分光线依次经过第三通光部23并从出光部24出射，另一部分光线射至第一分界面221上，在第一通光部12的折射率设置成大于第二通光部22的折射率的情况下，射至第一分界面221的光线中的大部分光线的入射角会达到全反射临界角，从而发生全反射，反射至出光部24并射出。光线经出光部24投射后形成具有明暗截止线的近光光形110。因此，根据本公开的示例性实施方式的远近光一体车灯光学元件，减小了第一通光部12中近光光线的损失，提高了近光光效，并防止近光光线进入第二通光部22，以避免在远光照明区域中存在杂散光。
另外，远光光源发出的光线经远光入光部21入射至第二通光部22，经由第二通光部22的第一反射面226的折射和/或第二反射面225的反射之后，直接射至第二分界面224或经第一分界面221反射至第二分界面224，由第二分界面224折射至出光部24，经出光部24投射后形成远光光形120。其中，第二通光部22的折射率可以设置成小于第三通光部23的折射率，因而在远光光线从第二通光部22进入第三通光部23时不会产生全反射，但能够产生折射。
在第一通光部12的折射率设置成大于第二通光部22的折射率的情况下，远光光源发出的光线不会在第一分界面221处发生全反射，将会有少量光线经第一分界面221出射至第一通光部12，经出光部24出射后投射至近光光形110区域，从而有利于远近光光形的衔接，避免远近光衔接处出现暗区，影响驾驶员的视觉效果。
因此，根据本公开的上述示例性实施方式的构型，近光光源和远光光源能够分别进行控制。在近光模式下，当近光光源单独打开时，所形成的近光光形110能够用于车辆的近光照明。在远光模式下，当近光光源和远光光源同时打开时，近光光形110与远光光形120相互组合，形成用于车辆远光照明的光形。
根据本公开的远近光一体车灯光学元件在远光模式下能够在近光光形与远光光形之间形成远近光重叠区，近光光形与远光光形两者衔接良好，照明效果更好。如图10所示，在远光模式下，当近光光源和远光光源同时打开时，近光光形110与远光光形120部分叠置，能够形成用于车辆远光照明的没有衔接暗区、远近光光形衔接良好的照明光形。
在一些实施方式中，根据本公开的车灯模组还包括用于远近光一体车灯光学元件的安装部、线路板和散热器(未示出)。远近光一体车灯光学元件1通过安装部紧固连接至车灯模组。如图2至图8所示的远近光一体车灯光学元件，近光光源可以在水平方向上设置在远近光一体车灯光学元件1的后侧，并且远光光源可以在竖向方向上设置在远近光一体车灯光学元件1的下侧。因此，可以根据近光入光部11和远光入光部21的位置，分别确定远光光源和近光光源的位置以及用于远光光源的线路板和用于近光光源的线路板的布置。此外，根据用于远光光源的线路板和用于近光光源的线路板的具体布置方式，可以相应地设计散热器的具体结构和尺寸。例如，可以对用于远光光源的线路板和用于近光光源的线路板设置一个散热器，或者可以对用于远光光源的线路板和用于近光光源的线路板分别设置独立的散热器。
根据本公开的用于车灯模组的远近光一体车灯光学元件可以基于车灯的灯体空间和期望形成的照明光形进行灵活设计，使得第一通光部的近光端设置成在竖向方向上与第二通光部的近光端间隔开，相应地使得对应于近光光源的近光入光部设置成与对应于远光光源的远光入光部相距较大距离，并且可以避免由于近光光源和远光光源彼此靠近而导致的温度过高，提高了散热效率，从而提升了近光光源和远光光源的稳定性。
以上参照附图并通过实施方式的描述对本公开进行了说明，但是本公开并不局限于上述实 施方式。本领域技术人员可以理解，在不脱离本公开技术思想的情况下可以进行修改和变型，这些修改和变型同样包含在本公开的保护范围内。
附图标记列表：1：远近光一体车灯光学元件；11：近光入光部；12：第一通光部；22：第二通光部；23：第三通光部；24：出光部；21：远光入光部；221：第一分界面；224：第二分界面；110：近光光形；120：远光光形。
工业实用性
本公开提供了远近光一体车灯光学元件和包括该远近光一体车灯光学元件的车灯模组和车辆。相比于现有技术中的包括组装在一起的近光模块和远光模块的远近光一体车灯，本公开的远近光一体车灯光学元件成型为一体件，并且可以充分利用车灯的灯体空间而构造成使得第一通光部的近端部设置成与第二通光部的近端部间隔开，相应地使得对应于近光光源的近光入光部设置成与对应于远光光源的远光入光部相距较大距离，因此可以避免由于近光光源和远光光源彼此靠近而导致的温度过高，提高了散热效率，从而提升了近光光源和远光光源的稳定性。
此外，可以理解的是，本公开的远近光一体车灯光学元件、车灯模组和车辆是可以重现的，并且可以应用在多种工业应用中。例如，本公开的远近光一体车灯光学元件可以应用于小型车灯中。

Claims (15)

  1. 一种用于车灯模组的远近光一体车灯光学元件，所述车灯模组包括近光光源和远光光源，所述远近光一体车灯光学元件构造成接收从所述车灯模组的所述近光光源和所述远光光源发出的光，
    其中，所述远近光一体车灯光学元件包括：
    近光入光部(11)，所述近光入光部(11)设置成以一一对应的方式与所述近光光源对准并且构造成接收由所述近光光源发出的光，所述近光入光部(11)包括邻近于所述近光光源的近端部和与所述近端部相反的远端部；
    远光入光部(21)，所述远光入光部(21)设置成以一一对应的方式与所述远光光源对准并且构造成接收由所述远光光源发出的光，所述远光入光部(21)包括邻近于所述远光光源的近端部和与所述远光入光部(21)的近端部相反的远端部；
    第一通光部(12)，所述第一通光部(12)包括与所述近光入光部(11)的远端部邻接的近端部和与所述第一通光部(12)的近端部相反的远端部，所述第一通光部(12)从所述近光入光部(11)的远端部延伸，并且构造成传递由所述近光入光部(11)接收的光；
    第二通光部(22)，所述第二通光部(22)包括与所述远光入光部(21)的远端部邻接的近端部和与所述第二通光部(22)的近端部相反的远端部，所述第二通光部(22)从所述远光入光部(21)的远端部延伸，并且构造成传递由所述远光入光部(21)接收的光；
    第三通光部(23)，所述第三通光部(23)包括与所述第一通光部(12)和所述第二通光部(22)两者的远端部邻接的近端部和与所述第三通光部(23)的近端部相反的远端部；以及
    出光部(24)，所述出光部(24)设置成与所述第三通光部(23)的远端部邻接，
    所述远近光一体车灯光学元件的所述近光入光部(11)、所述远光入光部(21)、所述第一通光部(12)、所述第二通光部(22)、所述第三通光部(23)和所述出光部(24)由透明材料制成并且成型为一体件，所述第一通光部(12)与所述第二通光部(22)由不同的透明材料制成，所述近光入光部(11)和所述第一通光部(12)在竖向方向上设置在所述远光入光部(21)和所述第二通光部(22)的上方，在沿着由所述竖向方向和水平方向限定的竖向平面截取的截面中，所述第一通光部(12)和/或所述第二通光部(22)形成为呈弯折形，使得所述第一通光部(12)的所述近端部设置成在所述竖向方向上与所述第二通光部(22)的所述近端部间隔开。
  2. 根据权利要求1所述的远近光一体车灯光学元件，其中，所述第二通光部(22)包括第一弯折部分和第二弯折部分，在沿着所述竖向平面截取的截面中，所述第一弯折部分 设置成相对于水平方向成角度，所述第二弯折部分设置成相对于所述第一弯折部分成角度，使得所述第二通光部(22)的所述近端部在所述竖向方向上位于所述第二通光部(22)的所述远端部的下方。
  3. 根据权利要求2所述的远近光一体车灯光学元件，其中，所述第一通光部(12)包括第三弯折部分，在沿着所述竖向平面截取的截面中，所述第三弯折部分设置成相对于水平方向成角度，使得所述第一通光部(12)的所述近端部在所述竖向方向上位于所述第一通光部(12)的所述远端部的上方。
  4. 根据权利要求1至3中的任一项所述的远近光一体车灯光学元件，其中，所述远近光一体车灯光学元件设置有由不透光材料形成的覆盖件，所述覆盖件构造成与所述远近光一体车灯光学元件成型为一体件并且围绕所述第一通光部(12)、所述第二通光部(22)、所述第三通光部(23)中的至少一者的外周部。
  5. 根据权利要求1至3中的任一项所述的远近光一体车灯光学元件，其中，所述近光入光部(11)和/或所述远光入光部(21)包括聚光部，所述聚光部构造成对由所述聚光部接收的光进行准直会聚。
  6. 根据权利要求1至3中的任一项所述的远近光一体车灯光学元件，其中，所述第一通光部(12)的折射率设置成大于所述第二通光部(22)的折射率。
  7. 根据权利要求6所述的远近光一体车灯光学元件，其中，所述第一通光部(12)和所述第三通光部(23)两者由相同的透明材料制成。
  8. 根据权利要求6所述的远近光一体车灯光学元件，其中，所述第一通光部(12)、所述第三通光部(23)和所述出光部(24)三者由相同的透明材料制成。
  9. 根据权利要求8所述的远近光一体车灯光学元件，其中，所述第一通光部(12)、所述第三通光部(23)和所述出光部(24)三者由聚碳酸酯材料或者有机玻璃制成。
  10. 根据权利要求6所述的远近光一体车灯光学元件，其中，所述第一通光部(12)设置有截止线结构(223)，所述截止线结构(223)设置在所述第一通光部(12)与所述第二通光部(22)之间的第一分界面(221)的前边缘处。
  11. 根据权利要求1至3中的任一项所述的远近光一体车灯光学元件，其中，所述第二通光部(22)和所述第三通光部(23)由不同的透明材料制成，在所述第二通光部(22)与所述第三通光部(23)之间形成有第二分界面(224)。
  12. 根据权利要求11所述的远近光一体车灯光学元件，其中，所述第二分界面(224)构造成具有平面形状或者曲面形状。
  13. 根据权利要求11所述的远近光一体车灯光学元件，其中，所述第三通光部(23)由聚碳酸酯材料或者有机玻璃制成，所述第二通光部(22)由硅胶材料制成。
  14. 一种车灯模组，所述车灯模组包括根据权利要求1至13中的任一项所述的远近光一体车灯光学元件。
  15. 一种车辆，所述车辆包括根据权利要求14所述的车灯模组。
PCT/CN2021/133663 2021-11-26 2021-11-26 远近光一体车灯光学元件、车灯模组和车辆 WO2023092488A1 (zh)

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CN107289395A (zh) * 2016-04-11 2017-10-24 法雷奥照明公司 用于发射光束的机动车辆的前照灯模块
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